Accept all to help decide what gets built next. The numbers show which parts people actually use, and that is what the work follows. Analytics is the only cookie here, it is not loaded until you say yes, and no password you generate is ever sent anywhere — whatever you answer.
Analytics
Google Analytics. It sets its own cookies and sends your page views, which controls you press and how far down a page you read to Google in the United States — never anything you type, and never a password you generate. Off unless you turn it on.